This video discusses what Glucose-6-phosphate Dehydrogenase (G6PD) enzyme is and its role in Carbohydrate metabolism. It covers the function of G6PD in the redox metabolism of the red blood cells, the oxygen free radicals, HMP shunt, and glycolysis. Timeline: 00:01 introduction 02:40 redox metabolism in the red blood cell 06:50 oxygen free radicals 10:35 glycolysis